I haven't checked RRM's site in a while for products or revisions of products, but I don't think its worth the cash. I have seen some of those work fine...and some fail terribly. I don't know about the 08+, but the 04-06 RA's seemed to have a problem with randomly going into "limp mode" after installation. I don't have one and don't plan on buying....but that's like everything in the world. Some will say its the greatest thing in the world, and others say it will eat your first born and rape your mother....